Janis said: “Amy hated herself when she was drunk. She liked being in control and she hated what alcohol was doing to her. She could go for weeks without having a drink, but then she’d fall off the wagon. She was like a little girl who just couldn’t resist putting her finger in the fan, even though she knew it was dangerous.”

“But she never drank in front of me. She loved and respected her family too much for that. She was the type of girl who, before lighting up a cigarette, would ask, ‘Do you mind, mum?’”

“I don’t think for a second she ever thought she would die, or that alcohol or drugs would kill her.”

She told the Daily Mail newspaper: “I think what killed Amy was not just thealcohol, but the fact she was less than 98 pounds and just over 5ft tall. Her body couldn’t cope with that amount of alcohol after three weeks of abstinence. It was the lack of consistency; the stopping and starting again.”